.github: Bump actions/checkout from 3 to 4 #20

	name: validate-generated-files

	on:
	push:
	branches: [ main ]
	pull_request:

	jobs:
	validate-generated-files:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v4
	with:
	go-version: '1.20'

	- name: Install Protoc
	uses: arduino/setup-protoc@v2

	- name: Set up Buf
	uses: bufbuild/buf-setup-action@v1

	- name: Check generated files
	run: \|
	export PATH=$PATH:$(go env GOPATH)/bin
	make install-tools
	make generate
	git diff --exit-code --numstat

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